ES2804513T3 - Inspection device, manufacturing facility with inspection device and inspection procedure for containers - Google Patents

Abstract

Inspection device (1) for examining containers fixedly arranged on a processing machine (10), comprising a camera (2) which has a first optical component (3) and is coupled to an image processing unit and which is arranged with respect to a container (20) to be inspected, which is in an inspection position on the processing machine (10), the inspection device (1) presenting a second optical element (6, 6') mounted movably, and the first optical element (3) and the second optical element (6, 6') being operatively connected with the camera (2) for recording images of at least one view in the direction of a container opening and at least one view in the direction of a side opposite the container opening of the container (20) to be inspected, the second optical element (6, 6') being disposed movably mounted on a displaceable component that understands by at least one retaining tube (7), in which - the chamber (2) is stationary with respect to the container (20) to be inspected, characterized in that - the chamber (2) with at least one lighting device (5) is surrounded by a casing tube (4), the casing tube (4) having a central longitudinal axis, and an outer diameter of the casing tube (4) being smaller than an opening cross-section of the retaining tube (7), so that the casing tube (4) can be at least partially accommodated in the retaining tube (7), and - the component, in which the second optical element (6, 6') is arranged can move with respect to the stationary chamber (2) parallel to the longitudinal axis of the enclosing tube (4).

Description

DESCRIPTION

Inspection device, manufacturing facility with inspection device and inspection procedure for containers

The present invention relates to an inspection device with which containers can be examined for damage conditions. Furthermore, the invention relates to a manufacturing plant with which containers of this type are processed and which contains an inspection device according to the invention.

Finally, the present invention comprises an inspection method by means of which containers can be examined.

Containers such as cans and bottles, which serve to house food, chemicals, medicines and others, should be examined for damaged areas before filling and circulating to ensure that, on the one hand, the filling procedure runs without fail and that, on the other hand, the contents of the containers are not spoiled or affected in terms of their quality, as well as that a spillage of the liquids is safely prevented.

Containers are often formed as cans in the opening region by known shaping procedures, so that a flange is achieved at the bottle neck. This flange is particularly suitable for fastening a sealing foil or other closure element, for example a valve, thereto. For this, it is necessary that the flange does not present any damaged areas. In order to establish early whether the shaping process has left damage to the can or whether bottlenecks are damaged, which also have a bulging opening thickening on which, for example, crown caps can be placed, the bottles are examined or cans as usual immediately after finishing. In this regard, known manufacturing processes use image recording technologies with which the bottleneck or brittle can can be frontally recorded by means of image recording procedures. As is known in this regard, the bottles or cans, when they leave the preceding processing facility, are ejected from the facility and passed horizontally through a chamber. In this regard, the bottles or cans are only fixed by the force of gravity in a trough-shaped housing, so that they are only present in the bearing area positioned with reduced accuracy and as a function of the diameter relative to the location of its longitudinal axis on the moving conveyor belt, which is disadvantageous for high resolution image recordings. Even the smallest damage, such as scratches in paints or tiny nicks on the beaded edge, which requires high image resolution, can be sufficient to allow liquids to flow out of the unopened container precisely or, for example, to enter oxygen in the container and the content is disadvantageously modified, for example by oxidation.

Known image recording procedures are intended to represent the bottleneck in frontal recordings; subsequent sections produced by means of beaded edges or by means of bottleneck bulges cause regions below the bottle opening plane to be either not reproducible or only insufficiently reproduced and in this sense cannot be controlled .

Document GB 1182413 A discloses a device for inspecting a bottle from within, in which the device has a camera and a radiation source for invisible radiation (eg UV, IR), which irradiates the inner surface of the bottle . The camera must record fluorescence phenomena stimulated by invisible radiation and thus diagnose defects or fouling. The visible light generated by means of fluorescence is guided through a deflection mirror, which is placed at the end of a tree that can be deployed, to the stationary camera. A simultaneous engraving of the front surface and the inner or outer wrapping surface is not disclosed, much less a beaded edge with a rear section.

An inspection device for the internal inspection of bottles is also described in JP 8 152417 A. Therein, a cylindrical shaft of the inspection device is inserted into the bottle neck, in which a mirror is arranged at the shaft end, and the shaft for inspection is rotated about its longitudinal axis in the bottle. At the end of the tree outside the bottle is placed a camera that records the image deflected by the mirror from inside the bottle. When the shaft is inserted into the bottle neck, the non-stationary chamber moves with it. Only views of the inside of the bottle are generated; the device is not suitable for reproducing a beaded edge with a back section.

From document EP 1826556 A2 a checking device for cylindrical hollow bodies is known which has a camera with an objective and with a diverging lens arranged in front of it, as well as a cylindrical deflection mirror arranged on a common longitudinal axis with the camera and the cylindrical hollow body. The beam path is crossed from the workpiece to the camera by means of the deflection mirror, so that the front surface and the outer and / or inner envelope surface can be observed. However, subsequent sections, as they occur with a flanged edge to be examined, cannot be recorded in this way.

JP 2009 150767 A describes an inspection device with which the front surface and the inner envelope surface of a bottle neck can be inspected with a camera. The chamber is arranged in an extension of the longitudinal axis of the bottle neck. An annular mirror is arranged between the chamber and the bottle, which makes it possible to evaluate the inner envelope surface of the bottleneck when crossing the beam path towards the chamber by means of the annular mirror. Using the angle of the ring mirror, the desired depth of view can be adjusted. Consequently, a reproduction of the lower part of a flanged edge or of a rear section is not possible.

From this state of the art follows the requirement to provide an improved inspection device for examining containers that enables improved image quality to determine damage conditions on containers. This objective is achieved with the inspection device with the characteristics of claim 1.

Furthermore, it follows the requirement to create an improved manufacturing facility with which containers can be manufactured or processed and that allows online images to be recorded with improved recording quality of the container, it being desirable not to record only a plan view in a neck plane. bottle but to achieve a reproduction as complete as possible. This objective is achieved with the manufacturing facility with the features of claim 5.

Furthermore, it follows the objective of creating an improved inspection procedure that makes it possible to realize the container quality of containers immediately in manufacture so that it can be reproduced accurately and reliably. This objective is achieved with the inspection procedure with the characteristics of claim 8.

Corresponding refinements of the device and the method are made in the respective dependent claims.

An embodiment of an inspection device according to the invention serves to examine containers that are fixedly arranged on a processing machine.

In this regard, "containers" hereinafter mean a canister which can be filled, for example, with an aerosol or other liquid and which is shaped for this in a processing machine such as a stuffing machine. Such cans are produced mostly from metal. However, "container" can also be understood as a bottle, also glass or plastic bottles, as well as other containers such as vases and the like.

In this sense, by "processing" can be understood both the shaping and the placement of a surface coating, smoothing of the surface, or, in the case of glass processing, for example, polishing or any other type of post-processing of a blank or preform that must be shaped to form the container.

The inspection device of the present invention serves to determine damage to the surface of this type of container by means of image recording; In this regard, damage can mean scratches in a paint coating, but also nicks, torn material particles, fissures or cracks and further damage to the inside and outside of the container.

The inspection device has a support to which a camera is attached that is connected to an optical component such as one or more lenses, or another suitable optical component. The person skilled in the art knows cameras of this type. The camera has a conventional image processing unit. The image processing unit may be connected in a manner known to the person skilled in the art with units that process additional data or that process images, for example, to enlarge recorded images, to store or to produce comparisons with data processing units, a connection to a database in which comparative images of ideal or undamaged containers are stored can also be included, so that with the recording of damage and subsequent image comparison it is possible to immediately remove the damaged container from the installation manufacturing or a discharge device coupled therewith.

The camera and an associated lighting device are retained by a retention device connected to the bracket. The camera defines with its optical component an image recording axis that points in the direction of the container to be inspected, which is explicitly located in a so-called "inspection position": in this position the longitudinal axis is aligned center of the container to be inspected with the recording axis of the camera.

The inspection device also has a component that can be moved relative to the support, that is, movable. It comprises a retention tube, inside which a second optical component is arranged. The holding tube is arranged coaxially with the recording axis in a region between the chamber and the container and axially parallel in the direction of the container movably. The holding tube opening cross section that can be moved is greater than a maximum outer perimeter of a section of the container to be inspected. While the container to be inspected is in the inspection position, the inspection device will move into an image recording arrangement, with the holding tube moving over the container so that at least the section of the container to be inspected it is surrounded by the holding tube. In this regard, the ray path runs from the illumination device to the section of the container to be inspected and from there via the second optical component to the first optical component of the camera.

In one embodiment of the invention, the retention device may be a wrap tube made of a composite fiber, metal, metal alloy or plastic material, in which the central longitudinal axis of the wrap tube is aligned with the recording axis chamber and thus also with the central longitudinal axis of the container in the inspection position. The outer perimeter of the wrap tube is less than the opening cross section of the holding tube, so that the holding tube, when retracted from the image recording arrangement, partially or fully surrounds the wrap tube. The next container to be inspected can then occupy the inspection position without hindrance.

Although the first optical component that is coupled with the camera will usually be a lens or an arrangement of lenses, in the case of the second optical component it may be a mirror, in particular a mirror of concave or parabolic curvature with an aperture of central passage. This mirror arranged in the holding tube advantageously makes it possible for the container to be completely reproduced by its surroundings, that is to say also its side wall. The mirror has a through opening and, during image recording, slides to the desired extent with the movable retainer through the container. In this regard, its curvature is arranged in such a way that the camera optics can also record the rear sections and the walls by means of the mirror.

Alternatively, as an additional optical component, an endoscope optic can be arranged in the holding tube, which is held in the holding tube by means of a holding element in parallel and centered with respect to the central longitudinal axis of the tube. retention. One end of the endoscope optics is pointed at the camera. It is not connected to the camera, but a recording region of the camera is adjusted by the first component, or the lens, on the front surface at the end of the endoscope optics in such a way that an image transmission is effected from the endoscope optics to camera. The second end of the endoscope optics is oriented in the direction of the container which is in the inspection position, the container opening of which is directed towards the endoscope optics to thereby enable the second end to be inserted into the container. .

Advantageously, the present inspection device is suitable to already be integrated in-line in the production process and to take image recordings in the container at the end of the line or the processing train with the completion of the last processing steps, while the container is still fixedly arranged in the processing machine. This ensures that accurate, high-resolution images can be taken, revealing the smallest damage to containers. A manufacturing plant for the manufacture of containers, comprising at least one processing machine for processing the containers, therefore has a mobile transport device that moves the containers, which are nevertheless fixedly arranged in the device Of transport. In this connection, the containers, fixedly arranged in the transport device, pass through various processing stations in the processing machine, such as forming devices, without the containers having to be shaped.

Furthermore, the manufacturing facility according to the invention comprises an inspection device with which the quality of the container can be examined, as described above, after processing. In this regard, by "container quality" it is meant that there is no damage to the surface, damage ranging from cracks to scratches to material chipping and gouging.

In the manufacturing plant according to the invention the inspection device is integrated by means of a support in such a way that the camera with the corresponding image processing device and the optical component connected with the camera can adequately produce images widely not only from the plan view of the container neck, but if possible also of rear sections that are behind the neck, in inner or outer wall regions.

If only images are to be taken of the bottle or bottle neck, or the opening plane thereof, then a simple inspection device comprising a retention device, preferably a metal wrap tube, can be used in which the camera it is fastened with a lighting fixture. The beam path of the camera and the beam path of the illumination device run correspondingly with respect to an image recording aperture of the metal tube so that the exiting beam of light accurately illuminates the object to be examined and the camera can make recordings.

According to the invention, the inspection device is integrated in the online manufacturing facility, and can be found at the exit of the processing machine. This has the advantage that the processed containers are still fixedly arranged on the transport device and therefore do not wobble when imaging to achieve optimum image quality.

The inspection device comprising the holding device clamped on the holder, in which the camera is clamped with the first optical component and the lighting device, is arranged in the processing machine with respect to a container to be inspected, which is in an inspection position such that the camera points the first optical component along a recording axis in the direction of the container to be inspected and the recording axis is aligned with a central longitudinal axis container in inspection position.

Advantageously, the inspection device can be coupled with the processing machine by means of a control device to control the inspection device in a coordinated manner with respect to the transport device in such a way that the recording of images to examine the quality of the container it is carried out during a holding phase of the transport device with the container to be inspected in the inspection position. This retention phase is predefined for a duration that is necessary to process a container by means of the processing machine. This holding phase, together with the fixed arrangement of the containers on the transport device and the stationary camera, enables optimum image quality.

An inspection procedure that can be carried out in such a manufacturing facility to examine the quality of the container after processing then comprises securing the containers in the mobile transport device of the processing machine so that the containers can be processed. in various processing stations of the processing machine. Advantageously, the inspection device still carries out the examination in each case on the processing machine of one of the containers which is arranged in the inspection position, in which the central longitudinal axis of the container is aligned with the camera recording spindle. To record images of the corresponding container to be examined, the inspection device is controlled by means of the control device in a coordinated manner with respect to the transport device, so that the inspection device can examine the container which is in the position of inspection while the transport device is stopped. Such a holding phase is predefined by the duration of processing of the containers at the processing stations. The longest processing stage determines the duration of the retention phase, which is most of the time very short.

For making, as described above, extensive recordings and also for reproducing the inner side of the container or side wall sections and rear sections, an inspection device can be used which has, in addition to the static component, the one that can be moved.

According to this method embodiment, the movable part component of the inspection device and, consequently, the holding tube with the second optical component is axially displaced in parallel with respect to the recording axis in the direction of the container to be inspected in the image recording arrangement, so that the section of the container to be inspected is in the holding tube; however, the holding tube can also be guided throughout the container.

The ray path runs correspondingly from the illumination device to the section of the container to be inspected and from there via the second optical component to the first optical component of the camera.

It is particularly advantageous if the component that can be moved is a holding tube in which either a mirror such as a parabolic mirror or another mirror with concave curvature is arranged, which has a central passage opening and can be guided in this sense by the object whose recording of images must be made. By moving the mirror along the container to be examined, the posterior sections can be easily recorded, so that now the container can be recorded by means of the camera not only in a mere plan view, but also in a wide side view by means of the mirror optics in the holding tube indirectly. To record a wide inside view of the container, a holding tube with endoscope optics can advantageously be used which, while the holding tube engraves the container to be inspected, can be guided into the canister to be examined or the bottle. to be examined, making it possible to examine almost every geometric interior shape.

This and other advantages are set forth by means of the following description with reference to the attached figures. Reference to figures in the description serves to support the description and facilitated understanding of the object. Objects or parts of objects that are essentially the same or similar may be provided with the same reference signs. The figures are only schematic representations of exemplary embodiments of the invention. In this regard, they show:

Figure 1, a side view of a container to be inspected,

Figure 2, a schematic plan view of a manufacturing facility with a processing machine for the containers, in which the container to be inspected is indicated in the inspection position,

Figure 3, a schematic side view of a first embodiment of an inspection device according to the invention with which a container to be inspected can be examined in the inspection position in the processing machine,

Figure 4, a schematic side view of an alternative embodiment of the inspection device according to the invention,

Figure 5, a schematic side view of an inspection device corresponding to that of Figure 3, with the ray path from the container section to be inspected through mirror optics to the camera,

Figure 6, a side view of a container to be further examined, with the inspection facility according to the invention,

Fig. 7 a schematic side view of a second embodiment of an inspection device with which a container to be inspected can be examined from the inner side in the inspection position in the processing machine.

The invention relates to an inspection device with which a container, such as a can for example, can be checked at the end of production for its shape and for possible production errors. This check is carried out according to the invention on-line in ongoing production, with every container produced or every can being checked.

By container or can is meant herein a container with a longitudinal extension, which, as shown in Figures 1 and 6, may be contoured with collars, curvatures and notches. The top container opening 20 is surrounded therein by a flanged edge 21. Below the flanged edge 21 a throttle 22 is connected, so that this neck region of the container 20 cannot be registered when looking from above, as indicated by the block arrow a, since a rear section is formed. Also the bump, see arrow b, escapes view when looking from above.

In order to be able to carry out in this case a non-contact final control in a processing machine such as, for example, a stuffing machine 10 in FIG. 2, which is supplied by a feeding transport device 12 with cans to be processed and which is coupled with a discharge belt 13 which conveys the tubed containers, by means of which both the outer surface and the inner surface of the container can be examined, to the processing machine 10, in which a large number of containers fixedly on the transport device 11 and moving by means of it, an inspection device according to the invention is associated in the zone on the processing machine 10 which is displayed by means of the container 20 to be inspected in the inspection position at the exit of the processing machine. The inspection device 1 suitable for this according to the invention can be seen in Figures 3, 4, 5 and 7.

In this regard, the inspection device 1 has a support 9 to which a casing tube 4 is fixed as a holding device for the camera 2 and the lighting units 5. The enveloping tube 4 can be a metal tube, for example a steel tube, however, it can also be composed of a plastic or a fiber composite material. The camera 2 with an optical component 3 associated with it, as well as the lighting units 5 are housed in the envelope tube 4, a recording region of the camera 2, or its beam path, extending into an opening 4 'of the Surround tube 4 directed in the opposite direction to support 9. As shown in Figure 3, surround tube 4 together with camera 2 is arranged in such a way that its longitudinal or image recording axis forms an axis AA common with the axis longitudinal of the container 20 to be checked to be transported by the transport device 11 of the processing machine. The containers are fixedly hooked on the transport device 11, so that the container 20 which is in the inspection position corresponding to the recording axis AA can be precisely positioned in the recording region of the chamber 2 .

In this regard, the movement of the containers through the processing machine by means of the conveying device is not continuous, but is carried out in pulses due to the duration of processing of a container, so that each container is briefly held. successively with its longitudinal axis on the recording axis AA of camera 2 for the duration predefined by the processing, to be checked therein. The inspection device 1 is controlled in such a way that the examination sequences of the inspection device 1 run in coordination with the holding rhythm of the transport device 11. For this, the two can be coupled by means of a control device not shown. Only with camera 2 ready in the envelope tube 4 it is possible to record only the top view of the container 20, thus, shadow regions behind curvatures such as the flanged edge 21 cannot be recorded.

In order to be able to record these shaded regions also with the camera 2, the inspection device according to the invention 1 comprises a carrier element 7 'that can be moved parallel to the longitudinal axis of the casing tube 4 which, as shown in figure 3, can run through a stem 8 which is arranged in parallel with respect to the casing tube 4 which is fastened to the support 9. The carrier element 7 'has, in the region where the retaining tube 7 is attached, a through opening for the Surround tube 4 which is advantageously equipped in such a way that almost no incidence of extraneous light enters the interior of the holding tube 7, that is to say the inner volume of the holding tube 7 is mainly illuminated by the lighting units 5.

In the holding tube 7 there is arranged a mirror element 6 running around with a through opening 6 ", the diameter of which is configured to such an extent that the holding tube 7 can also move with the mirror element 6 over the largest cross section of the container 20 to be tested. The mirror element 6 can be designed differently from that represented, for example, as a parabolic mirror element, the through opening 6 "being arranged centrally, centered with respect to the axis A-A.

The holding tube with the mirror element arranged therein, as well as the casing tube and the through-opening of the carrier element, must not necessarily have round cross-sections. Depending on the cross-sectional shape of the container to be inspected, holding tubes with mirror elements with corresponding cross-sectional shapes can be selected, and the envelope tube and the corresponding passage opening in the carrier element can also be adapted equivalently. .

In figure 5 the container 20 inspected with an inspection device 1 corresponding to that of figure 3 is sketched together with the ray paths made possible by means of the mirror element 6 which can be moved. The displacement of the holding tube 7 attached to the carrier element 7 'for the mirror optics 6 is indicated by the block arrows c and c': the arrow c symbolizes the movement in the direction of the image recording arrangement and the arrow c 'illustrates retraction to allow the next container to be inspected to be transported into the inspection position. The ray paths run from the lighting units 5 to the container 20 (not shown) and there from the rear sectional section 22 inspected by the mirror 6 to the lens 3 of the camera 2. In this way, both Color errors such as defects such as holes, by these would be understood cracks, which penetrate the material from the outside to the inside, or in this way the so-called pits, by which it is understood in this case a material defect that is smaller than a hole or a crack, which however in further processing, for example when filling the container, could lead to material failure and container breakage.

In figure 4 an alternative inspection device 1 is shown in which instead of one camera two cameras 2, for this purpose one lighting unit 5, are arranged in the envelope tube 4. The improved registration region with respect to the The special mirror 6 of both cameras 2 enables an even better evaluation of the shadow regions of the container 20, for example, for the case of an asymmetric container in which it is not possible to focus the ray paths reflected by the container. The discontinuous ray path from the illumination unit 5 to the opening 4 'of the envelope tube 4 indicates that in this case an optical transmission element, for example an optical fiber, can also be used, so that the region of Illumination is outside the casing tube 4 and thus the container 20 is illuminated and not the interior of the casing tube. For the light rays reflected by the mirror optics 6 something similar may be applicable, the ray path is focused on the mouth 4 'of the envelope tube and is retransmitted to the cameras 2 in the envelope tube 4. To this end it is conceivable also that additional optical components can be used.

The container 20 shown in FIG. 6 has, in addition to the constriction 22 below the flanged edge 21 in cross-section, a corrugated profile with four recesses 24 that can also be examined with the inspection device according to the invention, the mirror element 6 moving up to the lowest recess and thus allowing a view of the lateral regions of the container that would not otherwise be possible with the camera arranged in top view.

Figure 7 shows a further embodiment of the inspection device 1 according to the invention, which can be used alternatively or in addition to the inspection device made previously with the mirror element 6 to record the outer surface of the container 20. By means of Using an additional special optical component 6 ', in this case an endoscope optics 6', the inner surface of the container 20 can also be inspected. Whereas when examining the outer surface it is not necessarily necessary that a container opening points into the chamber direction, although this is often the case depending on the container design (for example, in a throttle that connects to the container opening like a bottle neck), for examination of the interior the container 20 is arranged in the inspection position with its opening in the direction of the inspection device or the camera. In the retention tube 7 the endoscope optics 6 'is now retained by means of a suitable centering retention element 7 "which positions the endoscope optics 6 ', which can be an optical fiber, corresponding to the recording axis AA, or the middle axis of the container 20. In this respect, the endoscope optics 6' are now moved by the carrier element 7 'connected with the holding tube 7 axially in parallel with respect to the casing tube 4 with respect to the support 9 by means of the stem 8, so that the endoscope optics 6' is introduced into the container 20 by means of its opening, while the retention tube 7 is displaced over container 20. The non-inserted end of the endoscope optics 6 'is with its front surface relative to the chamber 2 with its corresponding optics assembly 3, continuously changing by means of the displacement of the optics of endoscope 6 'the distance between its front surface and camera 2 during a checking operation. The camera, or the optical assembly 3, is here designed in such a way that during the check the front surface of the endoscope optics 6 'is recorded, a recording region of the camera 2 can be adapted to a movable front surface. However, an endoscope optics can also be used, the length of which allows the end pointing to the camera 2 to be held stationary while the opposite end is moved within the container. In this case, it is sufficient to focus the recording region of the camera once on the front surface of the endoscope optics.

The integration of such an inspection device in the manufacturing facility 10 (see FIG. 2) with the transport device 11 thus enables a rapid, highly accurate examination of both the inner and outer surfaces of a container, such as a can, so that faulty or dirty containers can be effectively removed from the further processing procedure. Furthermore, for the automation of these operations the camera can be coupled with an image processing unit in which, as it were, a complete image of a correctly made container is deposited, so that the processing unit by means of the Comparison of the recorded image with the deposited image can establish whether the container to be checked is intact or has a defect or contamination. The increased accuracy of the examination is achieved because the inspection is integrated within the manufacturing facility on the processing machine and is not performed as hitherto at the belt end where the containers are no longer fixed in such a way as to allow highly positioning. precise.

List of reference signs

Claims (11)

1. Inspection device (1) for examining containers fixedly arranged on a processing machine (10), comprising a camera (2) having a first optical component (3) and is coupled with an image processing unit and which is arranged with respect to a container (20) to be inspected, which is in an inspection position on the processing machine (10), the inspection device (1) presenting a second optical element (6, 6 ') mounted movably, and the first optical element (3) and the second optical element (6, 6 ') being operatively connected with the camera (2) to record images of at least one view in the direction of a container opening and at least one viewed in the direction of a side opposite the container opening of the container (20) to be inspected, the second optical element (6, 6 ') being arranged movably mounted on a movable component comprising at least one retaining tube (7), in which - the chamber (2) is arranged stationary with respect to the container (20) to be inspected, characterized by what - the chamber (2) with at least one lighting device (5) is surrounded by an enveloping tube (4), the enveloping tube (4) having a central longitudinal axis, and the outer diameter of the enveloping tube (4) being smaller than an opening cross-section of the holding tube (7), so that the envelope tube (4) can be at least partially housed in the holding tube (7), and - the component, in which the second optical element (6, 6 ') is arranged, can move with respect to the stationary camera (2) in parallel to the longitudinal axis of the casing tube (4). Inspection device (1) according to claim 1, in which the enveloping tube (4) is made of a composite material of fibers, metal, metal alloy or plastic. Inspection device (1) according to one of the preceding claims, in which the camera (2) with the first optical component (3) points along a recording axis (AA) in the direction of the container (20 ) which is in the inspection position, in which in the inspection position the recording axis (AA) is aligned with a central longitudinal axis of the container (20) to be inspected, and in which the holding tube (7) is arranged coaxially with respect to the recording axis (AA) in a region between the chamber (2) and the container (20) and can move axially in parallel in the direction of the container (20), and the cross section The opening of the holding tube (7) is greater than a maximum outside diameter of a section of the container (20) to be inspected, so that in an image recording arrangement at least the section of the container (20) that to be inspected can be housed in the retention tube (7) and for providing the operative connection between the second optical element (6, 6 ') and the camera a ray path runs from the illumination device (5) to and from the section of the container (20) to be inspected via the second optical component (6, 6 ') to the first optical component (3) of the camera (2). Inspection device (1) according to at least one of claims 1 to 3, in which the second optical component is - a mirror (6), in particular a mirror with concave or parabolic curvature, with a through opening (6 ”) and / or - an endoscope optics (6 '), wherein the endoscope optics (6 ') is retained in the retention tube (7) by means of a retention element (7 ") in parallel and centered with respect to a central longitudinal axis of the retention tube ( 7) and a first end of the endoscope optics (6 ') points to the camera (2), and a recording region of the camera (2) can be adjusted by means of the first optical component (3) on a front surface in the first end of the endoscope optics (6 '), and wherein the container in the inspection position with its container opening points to a second end of the endoscope optics (6'). 5. Manufacturing plant for the manufacture of containers, comprising at least one processing machine (10) for processing the containers, which are fixedly arranged in the processing machine (10) on a mobile transport device (11 ) for moving the containers through various processing stations of the processing machine (10), and an inspection device according to at least one of claims 1 to 4, for examining the container quality after processing. Manufacturing plant according to claim 5, in which the inspection device comprises the second retention device (4), in which the camera (2) with the first optical component (3) is fixed and said at least a lighting device (5), and is positioned in the processing machine (10) with respect to a container (20) to be inspected which is in an inspection position, in such a way that the chamber (2) with The first optical component (3) along the recording axis (AA) points in the direction of the container (20) to be inspected, the recording axis (AA) aligning with a central longitudinal axis of the container (20) at the inspection position, the inspection device being coupled with the processing machine (10) for coordinated control with the transport device (11) by means of a control device to perform the examination of the container quality of the container (20) in position inspection after processing during a holding phase of the transport device (11), the holding phase being predefined for a duration necessary for the processing of a container. Manufacturing facility according to claim 5 or 6, wherein the containers are cans, the processing machine (10) is a stuffing machine (10) operatively coupled upstream with a feed conveyor (12) and water down with a discharge belt (13) to form the can bodies, in particular to form a can opening. Inspection method for examining container quality after processing of a container (20) in a manufacturing facility for the manufacture of containers according to at least one of claims 5 to 7, comprising the following steps: - arranging the inspection device with respect to the container (20) to be inspected in an inspection position, establishing a stationary position of the first optical element (3) to record images of at least one view in the direction of an opening of container, and - movably mounted in the direction of a side opposite the container opening of the container (20) to be inspected the second optical element (6, 6 ') to record images from a view of the side opposite the container opening of the container (20) to be inspected, and operatively connecting the stationary positioned first optical element (3) and the movably mounted second optical element (6, 6 ') with the camera (2), and - make recordings of images, respectively, of a container (20) that is in the inspection position, fixedly arranged, in the processing machine (10) by means of the inspection device by means of the camera (2) . Inspection method according to claim 8, comprising the following steps: - control in a coordinated manner the inspection device with respect to the transport device (11) by means of the control device and carry out the examination of the container quality of the container (20) in the inspection position during a holding phase of the transport device (11), the retention phase being predefined for a duration necessary for the processing of a container. Inspection method according to one of claims 8 or 9, in which the arrangement of the inspection device comprises moving the movable component with respect to the stationary chamber (2) of the inspection device (1) to the arrangement image recording of the retention tube (7) surrounded by the component with the second optical component (6, 6 ') moving the retention tube (7) axially in parallel with respect to the recording axis (AA) in the direction of the container (20) to be inspected, and - housing the section of the container (20) to be inspected in the retention tube (7). Inspection method according to at least one of claims 8 to 10, comprising the step of: - record recordings of images inside the container (20), which points with its opening in the direction of the camera (2), by means of the endoscope optics (6 ').